What were the primary reasons for American intervention in foreign affairs in the late-19th and early-20th century?

i think its either b or c

explanation:

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

answer; ///i believe that the correct answer is ; hieroglyphs or glyphs; the maya script, also known as maya glyphs, was the writing system of the maya civilization of mesoamerica; as always plz check first..good luck